I'm thinking if you play through the online world tour as you would the career (with the 3 different styles and an all-rounder), you'd be able to unlock all the coaches.
the link in the dev diary 6 is now working. I like that 3/4 view! i wonder if it is only for trailer purpose... i guess it'll be difficult to play like that but that would make a nice view for spectators watching an itst final